/* -*- mode: C -*-  */
/* 
   IGraph library.
   Copyright (C) 2007-2012  Gabor Csardi <csardi.gabor@gmail.com>
   334 Harvard street, Cambridge, MA 02139 USA
   
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc.,  51 Franklin Street, Fifth Floor, Boston, MA 
   02110-1301 USA

*/

#include <igraph.h>
#include <string.h>
#include <stdlib.h>

int print_attributes(const igraph_t *g) {

  igraph_vector_t gtypes, vtypes, etypes;
  igraph_strvector_t gnames, vnames, enames;
  long int i;

  igraph_vector_t vec;
  igraph_strvector_t svec;
  long int j;

  igraph_vector_init(&gtypes, 0);
  igraph_vector_init(&vtypes, 0);
  igraph_vector_init(&etypes, 0);
  igraph_strvector_init(&gnames, 0);
  igraph_strvector_init(&vnames, 0);
  igraph_strvector_init(&enames, 0);

  igraph_cattribute_list(g, &gnames, &gtypes, &vnames, &vtypes, 
			 &enames, &etypes);

  /* Graph attributes */
  for (i=0; i<igraph_strvector_size(&gnames); i++) {
    printf("%s=", STR(gnames, i));
    if (VECTOR(gtypes)[i]==IGRAPH_ATTRIBUTE_NUMERIC) {
      igraph_real_printf(GAN(g, STR(gnames,i)));
      putchar(' ');
    } else {
      printf("\"%s\" ", GAS(g, STR(gnames,i)));
    }
  }
  printf("\n");

  for (i=0; i<igraph_vcount(g); i++) {
    long int j;
    printf("Vertex %li: ", i);
    for (j=0; j<igraph_strvector_size(&vnames); j++) {
      printf("%s=", STR(vnames, j));
      if (VECTOR(vtypes)[j]==IGRAPH_ATTRIBUTE_NUMERIC) {
	igraph_real_printf(VAN(g, STR(vnames,j), i));
	putchar(' ');
      } else {
	printf("\"%s\" ", VAS(g, STR(vnames,j), i));
      }
    }
    printf("\n");
  }

  for (i=0; i<igraph_ecount(g); i++) {
    long int j;
    printf("Edge %li (%i-%i): ", i, (int)IGRAPH_FROM(g,i), (int)IGRAPH_TO(g,i));
    for (j=0; j<igraph_strvector_size(&enames); j++) {
      printf("%s=", STR(enames, j));
      if (VECTOR(etypes)[j]==IGRAPH_ATTRIBUTE_NUMERIC) {
	igraph_real_printf(EAN(g, STR(enames, j), i));
	putchar(' ');
      } else {
	printf("\"%s\" ", EAS(g, STR(enames, j), i));
      }
    }
    printf("\n");
  }

  /* Check vector-based query functions */
  igraph_vector_init(&vec, 0);
  igraph_strvector_init(&svec, 0);
  
  for (j=0; j<igraph_strvector_size(&vnames); j++) {
    if (VECTOR(vtypes)[j]==IGRAPH_ATTRIBUTE_NUMERIC) {
      igraph_cattribute_VANV(g, STR(vnames, j), igraph_vss_all(), &vec);
      for (i=0; i<igraph_vcount(g); i++) {
	igraph_real_t num=VAN(g, STR(vnames, j), i);
	if (num != VECTOR(vec)[i] &&
	    (!isnan(num) || !isnan(VECTOR(vec)[i]))) {
	  exit(51);
	}
      }
    } else {
      igraph_cattribute_VASV(g, STR(vnames, j), igraph_vss_all(), &svec);
      for (i=0; i<igraph_vcount(g); i++) {
	const char *str=VAS(g, STR(vnames, j), i);
	if (strcmp(str,STR(svec, i))) {
	  exit(52);
	}
      }
    }
  }

  for (j=0; j<igraph_strvector_size(&enames); j++) {
    if (VECTOR(etypes)[j]==IGRAPH_ATTRIBUTE_NUMERIC) {
      igraph_cattribute_EANV(g, STR(enames, j), 
			     igraph_ess_all(IGRAPH_EDGEORDER_ID), &vec);
      for (i=0; i<igraph_ecount(g); i++) {
	igraph_real_t num=EAN(g, STR(enames, j), i);
	if (num != VECTOR(vec)[i] && 
	    (!isnan(num) || !isnan(VECTOR(vec)[i]))) {
	  exit(53);
	}
      }
    } else {
      igraph_cattribute_EASV(g, STR(enames, j), 
			     igraph_ess_all(IGRAPH_EDGEORDER_ID), &svec);
      for (i=0; i<igraph_ecount(g); i++) {
	const char *str=EAS(g, STR(enames, j), i);
	if (strcmp(str,STR(svec, i))) {
	  exit(54);
	}
      }
    }
  }

  igraph_strvector_destroy(&svec);
  igraph_vector_destroy(&vec);

  igraph_strvector_destroy(&enames);
  igraph_strvector_destroy(&vnames);
  igraph_strvector_destroy(&gnames);
  igraph_vector_destroy(&etypes);
  igraph_vector_destroy(&vtypes);
  igraph_vector_destroy(&gtypes);

  return 0;
}

int main() {
  
  igraph_t g, g2;
  FILE *ifile;
  igraph_vector_t gtypes, vtypes, etypes;
  igraph_strvector_t gnames, vnames, enames;
  long int i;
  igraph_vector_t y;
  igraph_strvector_t id;
  char str[20];

  /* turn on attribute handling */
  igraph_i_set_attribute_table(&igraph_cattribute_table);
  
  ifile=fopen("LINKS.NET", "r");
  if (ifile==0) {
    return 10;
  }
  igraph_read_graph_pajek(&g, ifile);
  fclose(ifile);

  igraph_vector_init(&gtypes, 0);
  igraph_vector_init(&vtypes, 0);
  igraph_vector_init(&etypes, 0);
  igraph_strvector_init(&gnames, 0);
  igraph_strvector_init(&vnames, 0);
  igraph_strvector_init(&enames, 0);
  
  igraph_cattribute_list(&g, &gnames, &gtypes, &vnames, &vtypes, 
			 &enames, &etypes);
  
  /* List attribute names and types */
  printf("Graph attributes: ");
  for (i=0; i<igraph_strvector_size(&gnames); i++) {
    printf("%s (%i) ", STR(gnames, i), (int)VECTOR(gtypes)[i]);
  }
  printf("\n");
  printf("Vertex attributes: ");
  for (i=0; i<igraph_strvector_size(&vnames); i++) {
    printf("%s (%i) ", STR(vnames, i), (int)VECTOR(vtypes)[i]);
  }
  printf("\n");
  printf("Edge attributes: ");
  for (i=0; i<igraph_strvector_size(&enames); i++) {
    printf("%s (%i) ", STR(enames, i), (int)VECTOR(etypes)[i]);
  }
  printf("\n");

  print_attributes(&g);

  /* Copying a graph */
  igraph_copy(&g2, &g);
  print_attributes(&g2);
  igraph_destroy(&g2);
  
  /* Adding vertices */
  igraph_add_vertices(&g, 3, 0);
  print_attributes(&g);

  /* Adding edges */
  igraph_add_edge(&g, 1, 1);
  igraph_add_edge(&g, 2, 5);
  igraph_add_edge(&g, 3, 6);
  print_attributes(&g);

  /* Deleting vertices */
  igraph_delete_vertices(&g, igraph_vss_1(1));
  igraph_delete_vertices(&g, igraph_vss_1(4));
  print_attributes(&g);

  /* Deleting edges */
  igraph_delete_edges(&g, igraph_ess_1(igraph_ecount(&g)-1));
  igraph_delete_edges(&g, igraph_ess_1(0));
  print_attributes(&g);

  /* Set graph attributes */
  SETGAN(&g, "id", 10);
  if (GAN(&g, "id") != 10) {
    return 11;
  }
  SETGAS(&g, "name", "toy");
  if (strcmp(GAS(&g, "name"), "toy")) {
    return 12;
  }
  
  /* Delete graph attributes */
  DELGA(&g, "id");
  DELGA(&g, "name");
  igraph_cattribute_list(&g, &gnames, 0,0,0,0,0);
  if (igraph_strvector_size(&gnames) != 0) {
    return 14;
  }  

  /* Delete vertex attributes */
  DELVA(&g, "x");
  DELVA(&g, "shape");
  DELVA(&g, "xfact");
  DELVA(&g, "yfact");
  igraph_cattribute_list(&g, 0,0, &vnames, 0,0,0);  
  if (igraph_strvector_size(&vnames) != 2) {
    return 15;
  }
  
  /* Delete edge attributes */
  igraph_cattribute_list(&g, 0,0,0,0,&enames,0);
  i=igraph_strvector_size(&enames);
  DELEA(&g, "hook1");
  DELEA(&g, "hook2"); 
  DELEA(&g, "label");
  igraph_cattribute_list(&g, 0,0,0,0,&enames,0);
  if (igraph_strvector_size(&enames) != i-3) {
    return 16;
  }
  
  /* Set vertex attributes */
  SETVAN(&g, "y", 0, -1);
  SETVAN(&g, "y", 1, 2.1);
  if (VAN(&g, "y", 0) != -1 || 
      VAN(&g, "y", 1) != 2.1) {
    return 17;
  }
  SETVAS(&g, "id", 0, "foo");
  SETVAS(&g, "id", 1, "bar");
  if (strcmp(VAS(&g, "id", 0), "foo") ||
      strcmp(VAS(&g, "id", 1), "bar")) {
    return 18;
  }

  /* Set edge attributes */
  SETEAN(&g, "weight", 2, 100.0);
  SETEAN(&g, "weight", 0, -100.1);
  if (EAN(&g, "weight", 2) != 100.0 ||
      EAN(&g, "weight", 0) != -100.1) {
    return 19;
  }
  SETEAS(&g, "color", 2, "RED");
  SETEAS(&g, "color", 0, "Blue");
  if (strcmp(EAS(&g, "color", 2), "RED") ||
      strcmp(EAS(&g, "color", 0), "Blue")) {
    return 20;
  }      

  /* Set vector attributes as vector */
  igraph_vector_init(&y, igraph_vcount(&g));
  igraph_vector_fill(&y, 1.23);
  SETVANV(&g, "y", &y);
  igraph_vector_destroy(&y);
  for (i=0; i<igraph_vcount(&g); i++) {    
    if (VAN(&g, "y", i) != 1.23) {
      return 21;
    }
  }
  igraph_vector_init_seq(&y, 0, igraph_vcount(&g)-1);
  SETVANV(&g, "foobar", &y);
  igraph_vector_destroy(&y);
  for (i=0; i<igraph_vcount(&g); i++) {
    if (VAN(&g, "foobar", i) != i) {
      return 22;
    }
  }  
  
  igraph_strvector_init(&id, igraph_vcount(&g));
  for (i=0; i<igraph_vcount(&g); i++) {
    snprintf(str, sizeof(str)-1, "%li", i);
    igraph_strvector_set(&id, i, str);
  }
  SETVASV(&g, "foo", &id);
  igraph_strvector_destroy(&id);
  for (i=0; i<igraph_vcount(&g); i++) {
    printf("%s ", VAS(&g, "foo", i));
  }
  printf("\n");
  igraph_strvector_init(&id, igraph_vcount(&g));
  for (i=0; i<igraph_vcount(&g); i++) {
    snprintf(str, sizeof(str)-1, "%li", i);
    igraph_strvector_set(&id, i, str);
  }
  SETVASV(&g, "id", &id);
  igraph_strvector_destroy(&id);
  for (i=0; i<igraph_vcount(&g); i++) {
    printf("%s ", VAS(&g, "id", i));
  }
  printf("\n");  
  
  /* Set edge attributes as vector */
  igraph_vector_init(&y, igraph_ecount(&g));
  igraph_vector_fill(&y, 12.3);
  SETEANV(&g, "weight", &y);
  igraph_vector_destroy(&y);
  for (i=0; i<igraph_ecount(&g); i++) {    
    if (EAN(&g, "weight", i) != 12.3) {
      return 23;
    }
  }
  igraph_vector_init_seq(&y, 0, igraph_ecount(&g)-1);
  SETEANV(&g, "foobar", &y);
  igraph_vector_destroy(&y);
  for (i=0; i<igraph_ecount(&g); i++) {
    if (VAN(&g, "foobar", i) != i) {
      return 24;
    }
  }  
  
  igraph_strvector_init(&id, igraph_ecount(&g));
  for (i=0; i<igraph_ecount(&g); i++) {
    snprintf(str, sizeof(str)-1, "%li", i);
    igraph_strvector_set(&id, i, str);
  }
  SETEASV(&g, "foo", &id);
  igraph_strvector_destroy(&id);
  for (i=0; i<igraph_ecount(&g); i++) {
    printf("%s ", EAS(&g, "foo", i));
  }
  printf("\n");
  igraph_strvector_init(&id, igraph_ecount(&g));
  for (i=0; i<igraph_ecount(&g); i++) {
    snprintf(str, sizeof(str)-1, "%li", i);
    igraph_strvector_set(&id, i, str);
  }
  SETEASV(&g, "color", &id);
  igraph_strvector_destroy(&id);
  for (i=0; i<igraph_ecount(&g); i++) {
    printf("%s ", EAS(&g, "color", i));
  }
  printf("\n");    

  /* Delete all remaining attributes */
  DELALL(&g);
  igraph_cattribute_list(&g, &gnames, &gtypes, &vnames, &vtypes, &enames, &etypes);
  if (igraph_strvector_size(&gnames) != 0 ||
      igraph_strvector_size(&vnames) != 0 ||
      igraph_strvector_size(&enames) != 0) {
    return 25;
  }

  /* Destroy */
  igraph_vector_destroy(&gtypes);
  igraph_vector_destroy(&vtypes);
  igraph_vector_destroy(&etypes);  
  igraph_strvector_destroy(&gnames);
  igraph_strvector_destroy(&vnames);
  igraph_strvector_destroy(&enames);

  igraph_destroy(&g);

  return 0;
}
